why the transformer secondary voltage is more than the load end voltage like t

why the transformer secondary voltage is more than the load
end voltage like t/f 11KV/433V for 415V(terminal voltage)

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why the transformer secondary voltage is more than the load end voltage like t/f 11KV/433V for 415..

Answer / kapil

The regulation of transformer is same as it's percentage
impedance. this means the secondary voltage will drop @ 5%
for a transformer having 5% impedance. to compensate this
internal voltge drop we select nominal tap setting to 433
v. if you keep nominal tap for 415 V, we can not properly
utilize tapping range as 5% is internal drop at full load.

Is This Answer Correct ?

15 Yes

2 No

why the transformer secondary voltage is more than the load end voltage like t/f 11KV/433V for 415..

Answer / sriman

The voltage variation between secondary terminals and load
end voltage is because of voltage drop existing between to
systems

Is This Answer Correct ?

3 Yes

2 No

why the transformer secondary voltage is more than the load end voltage like t/f 11KV/433V for 415..

Answer / a.k.sen

To compensate the V-drop in the Transformer (considering Impedence value)at full load, Secondary voltage at 433V is selected for load terminal voltage at 415V.

Is This Answer Correct ?

0 Yes

0 No

why the transformer secondary voltage is more than the load end voltage like t/f 11KV/433V for 415..

Answer / vishvesh

this difference is kept between transformer secondary and
load terminal because. considering line losses (losses
occurs in the transmission line from transformer secondary
to load).there must be some voltage drop in the
transmission line and also c.t.and p.t. connected across
the line for protection relays also consumes some kind of
voltage from the line.

Is This Answer Correct ?

1 Yes

4 No

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